Per Manticore, the current line of CoX novels is done.
CDS will not be publishing anymore novels for us. For the record, that decision was made well before Freedom Phalanx hit the shelves. We are definitely looking into other possibilities for more CoX books but right now there are no official plans. Hope that helps clear things up.
Which is a shame, because the next novel planned, The Rikti Wars, is a lot more interesting to me than the previous two novel concepts (the 1930s founding and 1980s foundering of the Freedom Phalanx).